Refresh my memory, castor angles
Turbo Mini Forums

Just done a lot of work on my suspension and am in the process of setting up my castor angles, I remember turn the wheels each way and measure the camber but what do you do with these mesasurements?
Its been a few years since I last done this also what castor angles do you guys run?

Cheers
Paul

Edited by paul wiginton on 6th Aug, 2008.

I seriously doubt it!

the way I mesaure Castor is to drive the car no turn tables get a helper to turn the wheel in 20 deg and level the gauge and bubbles then turn the wheel out 20 deg and take the readiing the adjust to the desired value I normaly run 3 -4 deg factory is 1-3 deg no less then one no more than 5 imo on the race cars I run 2.2 deg neg camber and 6 mins toe out and .5 neg camber on the rear and 1.2deg toe out but this makes the car very skitty my road car runs 10 mins toe in and .5 deg camber on the rear and 1.5 deg neg camber in the front 1/16th toe out and 3 deg normal feal good but can have a tendency to wander,
regards,Paul.

If I had a gauge with bubbles on Id be sorted thanks to that but I have the cheap plum bob type from Minispares

Paul

I seriously doubt it!

the top ball joint needs to be 15mm further back than the botton one, this equates IIRC to 5- 6 degs , i think its 15mm could be 19,mm,
get a protractor out and draw it up,

measured on a flat of the bolt on the pin

Edited by fastcarl on 6th Aug, 2008.

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Ho fart never used one maby there is some one elce here that has sory Paul.

Sussed it. Found instructions on the Minimania site.

Paul

I seriously doubt it!

Do you have the link Paul?

Tom,
Instructions are here:
http://www.minimania.com/web/SCatagory/SUS...51/ArticleV.cfm

I have just had a quick go at this, admittedly using 1 full turn of lock either way rather than 20 degs as I don't have turntables and it 'looked' about right to the lines on the MS guage.

I'm sure my tie rods were set to standard length when fitted.
Results - I got a reasing of 8degs castor (4 degs on each 'lock') on the driver's side (not done passenger yet)!

No wonder it has a tendancy to foul the front of the arches on heavy bumps.

Thats the one Graemec, Ive now set mine, it was all over the place , it took me hours

Paul

I seriously doubt it!

I *think* I've managed to get mine set to 3 degress caster and 1.25 degree -ve camber. Not ideal but at least a starting point - I got bored after a while!

That sounds a descent setting, I put mine to 1.25 -ve camber and 3.5 castor

Paul

I seriously doubt it!

whats mins in mm's?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

It depends on how close to the pivot point youre measuring the minutes

Paul

I seriously doubt it!

granted, but is there a set arc length people use?

if i knew what the set length (i presume there is one?) is used i can work it out for myself

but if someone has a formula to hand... :)

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

Is this for caster/camber Joey? I think you'd struggle to measure them in mm.

Tracking however can be measured in mm but the conversion from degrees will be based on wheel size and where on the wheel you measure.

im just wondering in general, my laycock tracking gauges measure in mm, and ive been reading a few books/thread ont he web, and alot of people quote mins

was just trying to see how they compare really

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

1 minute is 1/60 of a degree

So obviously there is no direct comparison to mm as it depends on the distance over which you are measuring.

The dunlop gauges I have, have a conversion thing that you set to the rim width, and then read off another scale to convert from degrees to mm and back.